Typewriting machine



July 9, 1935. s. I. BERGER 2,007,359

TYPEWRITING MACHINE Original Filed Sept. 14,.1952 2 Sheets-Sheet 1ATTORNEY July 9', 1935. s. l. BERGER 2,007,359

TYPEWRITING MACHINE Original Filed Sept. 14, 1932 2 Sheets-Sheet 2 LLLaw J INVENTO sh" BY 7 I A %m ATTORNEY Patented July 9, 1935- UNITEDSTATES PATENT OFFICE TYPEWRITING MACHINE Samuel 1. Berger, Newark, N..1.

2 Claim.

This invention relates to typewriters, and more particularly to a toytypewriter which may be manufactured at a low cost.

This application is a division of my pending application Serial#633,105, filed September 14,

It is an object of this invention to provide a typewriting machine ofrugged structure and positive action which can be readily andconveniently assembled and manufactured at a low cost.

A further object is the provision in a toy typewriting machine ofimproved means for accurately and positively moving a carriage step bystep for letter spacing purposes.

A further object is the provision of a simple and inexpensive carriagefor a toy typewriting machine, the carriage supporting a stationaryplaten.

These and other advantageous objects which will later appear areaccomplished by the simple and practical construction and arrangement ofparts hereinafter described and exhibited in the accompanying drawingsforming part hereof, and in which: v

Fig. l is an elevational view in section of a typewriting machineembodying my invention,

Fig. 2 is a perspective view showing details of mechanism for moving acarriage step by step,

Fig. 3 is a perspective view of the carriage used in the typewritingmachine,

Fig. 4. is a bottom view of a portion of the machine showing details ofthe letter spacing device, and

Figs. 5, 6 and 7 are plan views showing the position assumed by saidparts of the letter spacing device while moving the carriage one space,

Fig. 8 is a perspective view showing further details of the mechanism,and

Fig. 9 is a perspective view showing further details of the mechanism.

Referring to the drawings, in Fig. 1, a typewriting machine is shown toinclude a base 16 supporting a. smallcasing I9 and a side support 20.

Although the drawings only showone side support 20 the complete machineincludes two side supports 29 which are spaced apart, one of saidsupports being omitted from the drawings in order to disclose moreclearly details of the internal mechanism.

Each side support 20 has an arcuate slot 2| in which moves a pin 23. Asquared shaft 22 is also rotatably mounted in the side supports 20 (seeFig. 1).

Referring to Fig. 2 it will be seen that the pin 23 pivotally connectsthe legs of a U-shaped member 24 to a pair of links 26 which are alsopivotally connected by a. pin 21 to a rockable frame 28, the latterbeing pivoted on a pin 29 journalled in the supports 20.

'In the side walls of the frame 28 is journalled 5 a shaft 30, havingfixed thereto a typewheel 3| and a gear 31, which meshes with a gear 36.The gears 31 and 36 are at right angles to each other. The gear 36 isformed on a plate 35 which is attached by means of eyelets 35' to andmoves with the plate 33. The plates 33 and 35 are rotatably mounted bymeans of an eyelet 34 on a cross bar 32, of the frame 28.

Pivotally supported by shaft 30 are the legs 38 of a U-shaped member,the legs 38 having slots 39 through which pass the ends of a spring 40.Mounted rotatably on the upper end 41' of the spring is an inking roller4| which is preferably made from an ink absorbing material and ismaintained in contact with the periphery of the typewheel 3| by theaction of spring 40. A rod 42 is connected to one of the legs 38 and tothe side support 29.

Pivotally supported by a pin 29 is an arm 43 having in its free end apawl 44 which is maintained in engagement with the gear 31 by a spring45, which is connected to the arm 43 and to the frame 29. Pivotallyconnected to the pin 21 is a link 45, which is also connected to a lever41 rotatably supported on the square shaft 22. The lever 41 has anarcuate slot 48 in which moves the bent end 49 of a rod 50. The end 49of the rod is also connected to an arm 52 having a right angularlydirected portion mounted on the squaredshaft 22 to rotate therewith. Thelever 41 has a similar right angularly directed portion 5| through whichthe shaft 22 passes freely, the lever 41 moving independently of theshaft 22. Shaft 22 has an angularly directed arm 54, to the extremity ofwhich is attached a finger piece 55.-

Referring to Fig. 4, the rod is connected to one arm of the bell crank56 which is pivotally supported by the casing IS, the other arm of thebell crank being pivotally connected to an arm 51 having a toothedextremity 58 directed at right angles to the walls 5| of casing .19 andpassing through a slot 59 in the casing, the slot 59 having a greaterwidth than the extremity 58 to enable the latter to move laterally aswell as 50 in and out of the slot.

The outward movement of extremity 58 is limited by a shoulder 50 on thearm 51, the shoulder engaging the wall 6| of casing 19. The bell crankand arm are normally maintained in the position shown in Fig. 4, thatis, with the toothed extremity 55 projecting outwardly as far as it willgo, by a spring 52, which is connected to the bell crank 55 and thecasing II.

A bar 53 is positioned in the casing ll adjacent the arm 51. The bar 52passes through a slot 54 in the wall 5| and has a toothed extremity 55.The opposite end of the bar is enlarged at 55 and passes through a slotin the wall 51 of the casing l9, the enlarged portion 55 having a flange65 which bears against a bowed spring 55 attached to the wall 51.

when the rod 55 is moved downwardly (see Fig. 4) the bell crank 55 isrotated clockwise to move the arm 51 laterally and downwardly, thetoothed extremity 55, of course, having the same movement. Continuedmovement of arm 51 downwardly causes a lug 15 on the arm 51 to engagethe portion 55 of bar 53 to move the latter downwardly against theaction of the spring 59.

The base l5 has attached thereto a strip 1| having its side edges bentover to provide guide channels 12, in which slide the flanges 13 of acarriage 14, which has a plurality of spaced indentations 15 to receivethe toothed members 55 and 65. At each end of one of the flanges 15 onthe carriage are lugs 12' arranged to engage a stop 12' on one of thechannels 12, to limit the movement 01' the carriage in both directions.In assembling the carriage and base It, the stop 12' is bent outwardlyfrom the path of lugs 13' until the carriage has been slid into positionon the base, after which the stop 12 is bent into the path of lugs 13'to limit the movement of the carriage. Attached to the carriage is apaper guide plate 15, having attached thereto end members 11, whichsupport an arcuate member 15 having a groove 15, in which is positioneda stationary platen It, the latter consisting of a strip of hard rubberor similar material. The platen 8|! is held in place by tabs 5| integralwith the end members 11.

Struck out from the plate 15 are two spaced apart bearings 52 (only onebeing shown in Fig. 3), which support a shaft 53 to, which is attached aroller 54, the latter projecting through an aperture of plate 15 toengage a roller 55 fixed to a squared shaft 51, the latter beingsupported by and passing through the end members 11. The plate 15 isprovided at its ends with ears 89 which also support the shaft 51.

Fixed to the end of shaft 51 is a knob which frictionally engages a fiatspring 52 to prevent free rotation of the shaft 51. Also mounted on theshaft 81 is a U-shaped member having a longitudinal bar 93 extending thelength of the carriage and legs 94 which normally bear against thespring 92, the member having a certain amount of resiliency.

At the end of one of the flanges 13 on the carriage is a lug 13' adaptedto engage a stop 12' on one of the channels 12 to limit the movement ofthe carriage.

In operation, a sheet of paper is inserted in the carriage. The plate32, which has the letters of the alphabet, numerals and other symbolsprinted thereon, is rotated until the symbol desired to be typed liesbetween the forks of theindicator 95, which is integral with the frame28, and the point of printing of the letters is indicated by a pointer91 attached to the side supports 20. To make an impression of the symbolon the paper, a finger piece 25 is depressed, the finger piece beingrotatably mounted on the shaft 22, having a lug 55 which bears on themember 24 to cause the latter to move downward, which movement, throughthe links 26, causes counter-clockwise rotation of the frame 25, tobring the type wheel Si in contact with the paper directly above theplaten 80. The downward movement of member 24 is limited by contact witha rod I5 mounted on the side supports 25. As the frame rotatescounter-clockwise the rod 42 prevents similar rotation of the U-shapedmember 35, and the latter moves in a clockwise direction and causes theinking roller to pass over the type and ink the symbols before eachimpression. This arrangement insures uniform and positive inking at alltimes, it only being necessary to moisten the roller 41 with ink fromtime to time.

During the downward movement above described, the link 46 rotates lever41 counter clockwise to draw the rod 50 to the right (Fig. 2) ordownward (Fig. 4) to move the toothed extremity 58 from engagement withthe indentations 15, and laterally. When pressure is relieved on thefinger piece 25, a spring 59, connected to the member 91 and to the pin21, returns the parts to their normal position, as shown in Fig. 1.During the return to the normal position, the toothed member 58 movesupward (Fig. 4) to engage the indentations 15 and laterally to the leftto move the carriage to the left the space of one letter, (see Figs. 5and 6). Slipping of the carriage is prevented by the toothed member 55which ratchets over the indentations during the movement of the carriageby member 58.

When it is desired to move the carriage space by space without printinga symbol, the finger piece 55 is depressed to rotate shaft 22 to rotatearm 52 clockwise (see Fig. 8) to pull on rod 50, the lever 41 not beingaffected due to the lost motion connection enabled by the arouate slot48. Depressing of finger piece 55 will cause the toothed extremity 58 tomove the carriage step by step as above described. Should it be desiredto freely move the carriage without the step by step movement,the'flnger piece 55 is depressed as far as possible to cause the lug 15to engage enlarged portion 66 of bar 53 to withdraw both toothed members58 and 55 from engagement with the indentations 15 as shown in Fig. 7.

From the above description it will be seen that there has been presenteda simple and inexpensive typewriting machine which is accurate andpositive in operation, having a rugged structure with practically noparts to get out of order. While the machine herein described isintended primarily for use as a toy, it is obvious that the featuresembodied therein can effectively be applied to other typewritingmachines without departing from the spirit of the invention.

The foregoing disclosure is to be regarded as descriptive andillustrative only, and not as restrictive or limitative of theinvention, of which obviously an embodiment may be constructed includingmany modifications without departing from the general scope hereinindicated and denoted in the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. In a typewriting machine, a carriage having a plurality of spacedindentations, a first toothed member and a second toothed member,resilient means urging said members into engagement with theindentations, means to move the first member laterally and into and outof engagement with the indentations, the second member ratcheting overthe indentations during said movement, and means on the first memberengaging the second member to move the latter entirely out of engagementwith the indentations when a predetermined force is applied to the firstmember.

2. In a typewriting machine, a carriage having a plurality of spacedindentations, a first fiat member having a toothed extremity and. asecond fiat member having a toothed extremity and an enlarged portion,said members being movable in parallel planes, resilient means urgingsaid members into engagement with the indentations, means to move thefirst member laterally into and out of engagement with the indentations,the second member ratcheting over the indentations during said movement,and a lug on the first member engaging the enlarged portion of thesecond member to move the latter entirely out of engagement with theindentations when a prede- 10 termined force is applied to the firstmember.

SAMUEL I. BERGER.

